Hair dye



I 40 tives will give a- Patented Mar. 20, 1928.

UNITED STATES WOLF KRITCHEVSIQY, OF CHICAGO, ILLINOIS.

HAIR DYE.

No Drawing.

It is a well known fact that organic bases, such as, diamino, di-hydroxy derivatives, hydroxy derivatives, and mixtures of hydroxy and amino groupings derivatives of cyclic hydrocarbons, such as benzene,

naphthalene, etc., form excellent hair dyes, when applied to the hair and left to oxidize, either in the air, or by an after treatment with oxidizing agents, such as hydrogen peroxide. v

While preparations containing those bases are on the market and enjoy great popularity, they have a number of drawbacks. It requires a personal skill and expert technique in the art in order to apply them properly, otherwise the hair becomes stricken, and very often assume unnatural and undesirable shades. Another bad feature of the above named'preparations lies in the fact that they staineverything with which they came in contact, such as the scalp, the forehead and hands.

'We have found out that all those shortcomings can be overcome by simply incorporatin the afore-named bases into soap. The finished roduct represents a cakeof soap that can e appliedto the hair by rubbing it on with "water until a lather is formed, and the hair being 0 above named dye preparation. After the application, the hair is rinsed, the-hands washed, the color appearing in the air. If quicker action is desired, the processcan'be accelerated by-rinsing the hair with hydrogen peroxide. can be obtained simply amount of base used,-and also, the t base used, for instance, di-hydroxy erivaor oxy-amino derivat' brown shades, di-amino brown to black shades.

derivatives will give The same is true of amino-imino derivatives and amino-aryl-- 46 imino derivatives. Naphthalene will give redder shades than the-benzene- -In order to; prepare this type of soap, the

base is first dissolved in water, or dissolved r sus ended. alcohol, sulfon'atedoil, or

50 any 0 er suitable solvent. The solution or on is then incorpor with the soap. The following examples ,trate the preparation of the product:

(1) '5 parts pyrogallol, 10 parts water,

parts soap.

tri-.

' parts soap.

penetrated by the a very short time, due to the oxidation of the product in Any shade by varying the peof'. f f

in which C stands blond shade, tri-hydroxy' ves will give the the derivatives.

will illus Application filed March 29, 1926. Serial No. 98,285.

. (2) 5 parts paraphenylenediamine, 10 parts ethylene glycol, 85 parts soap.

(3) 5 parts amido-diphenylamine, parts glycerin, 85 parts soap.

(4) 5 parts 1-amido-4 naphthol, 10 parts alcohol, 85 parts soap.

(5) 3 parts para-amido-phenol, 2 .parts paraphenylenediamine, parts soap.

(6) 5 parts 1:2:4 diaminolphenol, 95

In. no wise do Iwish or mean to imply that I limit myself to the illustrative proportions given here... The proportions of the bases can be varied according to the depth of color for the shade desired or required. The greater quantity of base used, the greater the depth of color. I also do not limit myself to the bases mentioned above. Any bases belonging to the same class can be. used. I also do not wish to limit myself to the use of onebase only in the preparation of this product, since I. have found thatlin order to get certain desired shades, it is sometimes necessary to use two or more bases in the same product.

10 parts benzol, 85 F The method of application of this product I v has been previously discussed.

I claim: I 1. A dye and shampoo for hair consisting of soap, ethylene glycol and paraphenylenediamine.-' i

2. A composition soap, and organic formula of matter consisting of bases of the general for an organic cyclic hydrocarbon and It stands for a hydroxy group, an amino group and. their derivatives and substituted products, and in which position of'the Rs to each other issuch that they are capable of forming a quinoi'dal structure. I f

3. A composition of matter consisting of soa solvents, and organic bases of the gen- I era formula v f -R C w in which: Gstands for an organic-cyclic hydrocarbon, R for a hydroxy group, an, amino oup and their derivatives and sub-- stitu products, and

in which the position of the Rs to each other issuch that they are capable of forming a quinoidal structure. 4. A composition of matter consisting of soap, and organic bases of the general.

5 formula C,R R in which R stands 'for a; hydroxy group, an 0 amino group, and their substituted products, and in which the position of two of the Rs to each other is such that they are capable of-f0rming a quinoidal structure.

5.A composition of matter consisting of soap, solvents and organic bases of the gen- 16 eralformula in which C stands for anorganic cyclic 20 hydrocarbon, R stands fora hydroxygroup,

' an amino group and their substituted products, and in which the position oftwo of the Rs to each other is such that they are capable of forming a quinoidal structure.

In testimony whereof I have aflixed my signature. a -'WOLF KRITGHEVSKY. 

